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This research describes the estimation and quantization of physical benefit for the fixed/variable aperture collimator (Iris) of Cyberknife M6. The fixed collimator and Iris were measured of output factors in different depths (650, 800 and 1000 mm) with an ionization chamber inside a water phantom, and the physical characteristic of profile was compared in different depths (5, 7.5, 10, 12.5, 15, 20,...
This paper addresses a new approach based on the Weber-face and singular value decomposition (SVD) methods to improve the recognition accuracy for a face recognition system using local binary patterns and local ternary patterns in an illumination variation environment. The face images are the first extracted illumination-invariant components by the Weber-face method. Secondly, SVD is applied to the...
Computed Tomography (CT) technology has been widely used for detecting and diagnosing lung disease. To improve the visibility of essential features in a CT image, reducing noise and blur, sharpening features, and increasing contrast are necessary. In this study, we propose a method to improve these features and gain better characteristics of region of interest in lung CT images for a right diagnosis...
In recent years, gold prices continued to remain high. In order to lower cost, the gold wire packages substantial reduction and mostly converted to silver-palladium gold or copper palladium wire manufacturing process. The silver wire has high conductivity, high reliability and wide applied to the memory, the light-emitting diodes, and other products, but the price is still a little higher than copper...
Partial update (PU) methods play a critical part in least-mean square (LMS) algorithms with an aim to reducing computational complexity. This paper presented a novel variable step-size PU procedure for LMS algorithms via the performance metric, called error difference indicator. With the aid of such an indicator, the PU procedure can determine the proper step size and works efficiently with a low-cost...
A wideband coplanar waveguide integrated with micro-strip line on a through glass via substrate is presented. The design of the ultra-wideband micro-strip to coplanar waveguide transition, which are used at input/output ports. Vertical via connecting the top coplanar waveguide to the ground plane on the bottom of the substrate to achieve the shortest signal transmission distance. Simulated the maximum...
This paper presents a design of controlled robotic arm with myoelectric and body action signals. The implementation uses the sensed signals, via the signal processing of ARDUINO UNO R3 development board and NUC140VE3CN development board (ARM processor), to control the robotic arm wirelessly. The proposed design can be used in the dangerous operation environment. The users can contactlessly control...
Unavoidable process random variation causes mismatches to deviate the performance of many analog circuit blocks. In addition, the correlation between components is also related to the performance parameters of analog circuits. This paper proposes a layout strategy to reduce the random error by making the trade-offs among performance parameter, correlation coefficient, and area allocation cost. Simulation...
This paper studies the power quality analysis of electric buses (EBs) and electric vehicles (EVs) on the distribution system. The stochastic harmonic models for EBs and EVs and the stochastic models for their usage scenarios are built considering the uncertainties of the measured data. Based on these models, this paper proposes a harmonic load flow analysis considering the uncertainties of system...
In this paper, an innovative transformer load estimation methodology is proposed to determine the daily power profile of distribution transformers. A two-stage load estimator algorithm that combines customer load pattern from smart meters and state estimation (SE) theory is developed to provide the secondary output power of distribution transformers in the low voltage network at a sound accuracy with...
Kaohsiung City Government coordinated with the central government to promote the Energy-Smart-City project plan, plan to propose the pioneered energy cloud for energy saving system in Taiwan. The system will help government to review energy efficiency, to explore the potential of energy saving so as to be basis for energy saving policy promotion. The system may also help citizens for energy management...
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